Method of making steel or semisteel car wheels



' To all whom it may concem:

iceability to any in use and New. 6

WILLIAM C. KLEIN, F ALLEN'IOWN, PENNSYLVANIA.

mn'rnon or m No Drawing.

Be it known that I, W'ILLIAM C. KLnIN, a citizen of the United States,residing at Allentown, in the county of Lehigh and State ofPennsylvania, have invented certain new and useful Improvements in aMethod of Makin Steel or Semisteel Car Wheels; and I do hereby declarethe following to be a full, clear, and exact description of the in- 10vention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention provides a semi-steel or steel car wheel equal indurability and servable less cost.

In practicing the invention, scrap steel is reduced to a molten state,in an electric furnace and a metal alloy, such as ferrosilicon,

ferromanganese, nickel and the like,- is

addedthereto and the molten mass is poured into a mold and the resultantwheel when cooled is subsequently finished by being turned in a? lathe.If preferred, the wheel after being. cast may be annealed preliminary tobeing turned to e. finished surface or ground if tread and flange arehardened.

A semi-steel, or steel car wheel produced at a consider- KING STEEL OBSEHIS'I'E EL CAR WHEELS.

Application flied October 19, 1921. Serial No. 508,827.

in accordance with the process, or method herein outlined is e ual toany in service an the cost is materia low and the quantity of outputconsiderably greater.

It is observed that steel of any kind may be heated or reduced to amolten state reliminary to bein laced-inthe electric rnace and refinefore hein poured into the mold to provide the stee or semi-steel wheel.v

Having thus described the invention, what I claim is The method hereindescribed of producing semi-steel or steel car wheels, which consists inreducing scrap steel to a molten state, treating the molten steel in anelectric fur: nace to refine the same, adding a metal alloy to the steelwhile in a molten state in the electric furnace, said alloy being suchas to toughen and harden the steel when set, then pouring the molten.mass into a mold, and finally finishing the same when cooled.

In testimon whereof I afiix' my signature in presence 0 two witnesses.

HARRY H. Hm, J. Reno.

